2621020116 has 192 divisors, whose sum is σ = 7676928000. Its totient is φ = 684633600.

The previous prime is 2621020109. The next prime is 2621020117. The reversal of 2621020116 is 6110201262.

It is a junction number, because it is equal to n+sod(n) for n = 2621020092 and 2621020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621020117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1541835 + ... + 1543533.

It is an arithmetic number, because the mean of its divisors is an integer number (39984000).

Almost surely, 2^2621020116 is an apocalyptic number.

2621020116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2621020116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3838464000).

2621020116 is an abundant number, since it is smaller than the sum of its proper divisors (5055907884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2621020116 is a wasteful number, since it uses less digits than its factorization.

2621020116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790 (or 1788 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2621020116 is about 51195.8994061048. The cubic root of 2621020116 is about 1378.7645801232.

Adding to 2621020116 its reverse (6110201262), we get a palindrome (8731221378).

The spelling of 2621020116 in words is "two billion, six hundred twenty-one million, twenty thousand, one hundred sixteen".